Use Headless Chrome at Travis CI

.travis.yml

@@ -10,11 +10,6 @@ cache:
 addons:
   chrome: stable
 
-before_install:
-  - export CHROME_BIN=chromium-browser
-  - export DISPLAY=:99.0
-  - sh -e /etc/init.d/xvfb start
-
 script:
   - 'if [ "${D3VER}" = "4" ]; then npm i "d3@^4"; npm list d3; fi'
   - 'if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then grunt ci; else grunt ci-pull; fi'
@@ -23,6 +18,7 @@ env:
   global:
   - secure: Kt+5IJDJRVwr28xRnmR5YDsJceXDcDR21/JUBfk6DYFixPbIq7LCPnZUmiSZQs8akU95ucXwB5hsirUAdEhXdYKilec6go70lticVlZBLy8IdJ+Di1uPwMOeMHvalC2P0woIRJSMzP8u5E+e+5ASggTjsXID7/p1rE0jXtoOueQ=
   - secure: TED5eLMxEsyIGzKP8xxhyRDbKlIX9POzj1qgan40a8rkwIVzkdglkviLAXJJeP0ilc1GeGz1ctXyA6NAZt7RHB79mdQbH9iV1AsR29ItH4jdBs7eWRybDRKYRlmOntH0n7zlJDB4qQMxvNdI8BKYrPQymgZ3jtRJ/INOvLerg1g=
+  - CHROME_BIN: chromium-browser
   matrix:
   - D3VER: 4
   - D3VER: 5

Changelog.md

@@ -1,3 +1,6 @@
+## 3.0.5
+* Use Chrome and Firefox headless at Travis CI, by Deepak Kumar. See ([#1452](https://github.com/dc-js/dc.js/pull/1452)), an attempt to resolve ([#1451](https://github.com/dc-js/dc.js/pull/1451))
+
 ## 3.0.4
 * Box plot enhancements: jittered data points, data point tooltips, bold outliers, by Chris Wolcott. Also implements `yRangePadding` to fix problems with not enough/too much space for labels in box plots. ([#1439](https://github.com/dc-js/dc.js/pull/1439) / [#1370](https://github.com/dc-js/dc.js/issues/1370) / [#1120](https://github.com/dc-js/dc.js/issues/1120))
 * Code cleanup - replaced `.rangesEqual` with `dc.utils.arraysEqual`, by Deepak Kumar ([#1436](https://github.com/dc-js/dc.js/pull/1436) / [#1405](https://github.com/dc-js/dc.js/issues/1405))

Gruntfile.js

@@ -227,7 +227,25 @@ module.exports = function (grunt) {
                 }
             },
             ci: {
-                browsers: ['Chrome', 'Firefox'],
+                browsers: ['ChromeNoSandboxHeadless', 'FirefoxHeadless'],
+                customLaunchers: {
+                    // See https://github.com/karma-runner/karma/issues/2603
+                    ChromeNoSandboxHeadless: {
+                        base: 'Chrome',
+                        flags: [
+                            '--no-sandbox',
+                            // See https://chromium.googlesource.com/chromium/src/+/lkgr/headless/README.md
+                            '--headless',
+                            '--disable-gpu',
+                            // Without a remote debugging port, Google Chrome exits immediately.
+                            ' --remote-debugging-port=9222'
+                        ]
+                    },
+                    FirefoxHeadless: {
+                        base: 'Firefox',
+                        flags: ['-headless']
+                    }
+                },
                 concurrency: 1,
                 reporters: ['dots', 'summary']
             },